Avaliação do escalonamento fractal de alguns solos brasileiros

Abstract

This paper evaluates the behavior of the fractal scaling of the pores by its distribution through soil-water retention curve tests in the soils. The results confirmed the hypotheses pointed for other authors on the existence of multimodal distributions with respect to the same soil. These modal peaks show a likely composite scaling (macropores and mesopores). This fact contributes to the peculiar and scaling form of the soil-water retention curve limits the use of models based on fractal geometry for forecasting of the water retention. The model proposed was developed to overcome partially these limitations and was tested in diverse soils, showing that, curves obtained from the model match to the experimental data, however the resultant fractal dimension in each soil does not keep a defined relation with its texture.